3312731 has 2 divisors, whose sum is σ = 3312732. Its totient is φ = 3312730.

The previous prime is 3312719. The next prime is 3312733. The reversal of 3312731 is 1372133.

It is a happy number.

3312731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3312731 - 2¹⁴ = 3296347 is a prime.

It is a super-2 number, since 2×3312731² = 21948373356722, which contains 22 as substring.

Together with 3312733, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3312733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656365 + 1656366.

It is an arithmetic number, because the mean of its divisors is an integer number (1656366).

Almost surely, 2^3312731 is an apocalyptic number.

3312731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3312731 is an equidigital number, since it uses as much as digits as its factorization.

3312731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378, while the sum is 20.

The square root of 3312731 is about 1820.0909317943. The cubic root of 3312731 is about 149.0717639978.

Adding to 3312731 its reverse (1372133), we get a palindrome (4684864).

The spelling of 3312731 in words is "three million, three hundred twelve thousand, seven hundred thirty-one".